Home / 685,734.60-1,028,766.18-286,153.14

Finding the Fourth Proportional to 685,734.60, 1,028,766.18 and 286,153.14

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Solution

The fourth proportional to 685,734.60, 1,028,766.18 and 286,153.14 is: 429,298.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,734.60 : 1,028,766.18 = 286,153.14 : x
  2. Step 2: Convert to fraction form
    685,734.60/1,028,766.18 = 286,153.14/x
  3. Step 3: Cross multiply
    685,734.60x = 1,028,766.18 × 286,153.14
  4. Step 4: Simplify right side
    685,734.60x = 294,384,672,732.81
  5. Step 5: Solve for x
    x = 294,384,672,732.81/685,734.60
  6. Step 6: Final answer
    x = 429,298.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.